Olivetti d-Copia 6500MF Plus Service Manual page 425

Code Contents
6520 Abnormally high fuser
thermistor 4 temperature
Fuser thermistor 4 detects a
temperature higher than
215°C/ 419°F for 1 s.
Y116520-3
Related parts
Fuser unit
Engine PWB
Fuser IH unit
1-4-97
Check procedures/
corrective measures
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and Engine PWB (YC26)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. eplace the Fuser unit (see page 1-5-67).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser IH unit and Fuser IH PWB (YC9
and 10)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the fuser IH unit (see page 1-5-
69).
2N8/2N7
Service Manual